Beam hoist and lock



March 12, 1929. A, DAW 1,704,885

BEAM HOIST AND LOCK Filed May 1927 Invenror. Harry A. DCIVIS ym MxW Patented Mar. 12, 1929.

UNITED STATES PATENT OFFICE.

HARRY A. DAVIS, or HOPEDALE, MASSACHUSETTS; ASSIGNOR T0 DRAPER conroRA- I anon, on HOPEDALE, MASSACHUSETTS, A CORPORATION or MAINE.

BEAM HoIsrAnn LOCK.

Application filed Ma a, 1927. Serial no; 189,762.

The present invention relates particularly to a mechanism for hoisting a warpbeani of a loom to running position and for'locking the warp beam in such position. It is,

however, obvious that the invention may be employed for the purpose of hoisting other beams of textile machinery into, and removing the same from, n'ormalposition.

The Warp beams for looms, when loaded, are yery heavy and when such beams are to be mounted upon theloom, great effort ,is required to liftthe beams into place as the parts of theloom frame and mechanism at the rear of the loom prevent the shaft of the warp beam from being brought into close proximity to the hearing The beam; must therefore be raised'bodily and carried sidei ise a considerable distance to enable the shaft thereof to be .placed ipon the usual bearings at the loom side.

One of the objects of the present inven tion is to provide means for supporting the bearing of the beam shaft in such a manner that it may be swung fromnorinal running position to a distance beyond the rear of the loom so that the beam shaft may be placed in the bearing and the bearing thereupon swung to its normal running position.

A further object of the invention is to pro vide a device of this character in whioli the' bearing for the beam shaft, whenswimg to its normal position, will be normally retainedin such position by the weight of the beam and bearing. 1

vA further object of the invention relates "to means for positivelylocking the bearing in running position to prevent possible'displacement due to vibration ofthe loom. I

A .furtheriobjeotof the invention is to provide a suflicient lev ei'ageto enable the operator or operators readily-to swing the loaded beam into running position.v

Other-objects and features of the invention will more fully appear from the, following a description and accompanyingdrawings and Will be particularly pointed out in the claims. Inasmuch as the present invention relates solely to the beam hoisting and looking mechside 1.

anisni, only so much of the loom is illustrated in the'accompanying drawings as is ent invention therewith. i A preferred embodiment of the invention s illustrated in the accoi'npanying drawings in which: I r i i Fig. 1 is an elevation of a portionofthe outer face of'a loom and side with the beam hoisting and locking mechanismapplied thereto. s c V Fig. 2 is a similar view showing the inner face of the loom sidelillustrated in F l and also illustrating the beam hoistin and locking mechanism: i ti I Fig. 3 is a detail rear view of the mechanism illustrated in F igsQl and I The invention is illustrated herein as applied to a usual form of loom comprising the loom sides 1; (oneof which is shown); which are connected by a transverse channel girder 2; Similar beam hoisting and locking mechanisms are, of course, provided for,

both sides of the loom and the of one will apply to both. r V

The upper portion of the rear end of the description" loom side is cut away to present a shoulder y which serves to support the lower bearing t for the shaft 5 of thewarp beam 6. The usual bracket 7 carrying the Whip roll 8 is mounted upon the upper end of the l'o onr I I This bracket projects rearwai'dly beyond the end of the. loom and, together" with the transverse girder and-other mechanisms of the loom, pevent theshaft of the loaded warp beam from being brought into close proximity tothe usual bearing for such shaft which is located in the recessed or shouldeied portion 3 of the loom side,

The present invention comprises a movable bearing for the beam shaft which is movable to a sufficient distancerearwardly of the end of the loom to enablethe beamshaft to be placed in the bearing and preferably, to be locked therein and which bearing then movable with the beam'shaft'fmounted therein-into normal running position.

In the preferred embodiment of the-inven- 'tion-illustrated herein each lower bearing 4 for the beam shaft Sis in theform-of a rectangular block which preferably is integral with an inwardlyextendingoffset portion 9" of an arm 10 whichcextends parallel to the loom side andwhich arm is pivotallymounte ed near its lower end upon a studll projects also "desirah ing inwaeiiy-hem a lh'ackclt which is secured to the inn er tace of the loom side by suitable bolts 13. The lower end of the arm 12 prov'icleelwith a re; :IWEFI'ClEiitGRSlOTlJ1meaerating a shoulder 14 whi oh adapted to restagainst the girder 2 when the arm which supports the bearing 3 is swung rearwariidlg; to a position toreceive the shaft of the beam, as illustrated in dotted lines in The arm 10 desirably has a boss which extends the 'bearing er the arm ripen the Stud 11 ed has a cent ral; loii'gjitudiii extendi i strengthening rib erw'eb 16 "i merges into a eylindri-callboss 1? at cndof the arm 10. tend-s at an angle t 't the arm 10 ant; bored to receive a 1 ar or'levei' 18 of suel-rdesilalile leiigtl-i as iv give the proper leverage to ehablethe arm and bearing with the loaded beam supported thereon to be lifted from loading posit-ioh to hoi nial iau'ining position with comparatively little ellort. The "axis oi the stud 11 upon which the arm 10 is meimtecl desirably is located approxima Ty in t-he plane of the rear end of the loom side so that when the lower beariiig 4L upon the shoulder 3, it will lie in front of the ve' ical plane of the rear end the loom side. The arm thereby elfect 'ively locks the bearing in position agaiiistrfearW-ard displacement tor-*the bearing; can only be moved rearwa-rdly by 7 moving itvertieally and iearwa-i'dly awa t the pivot 11 and such vertical and rearward movement of thebeari-ng with the heavy "Warp beam therein requiies'a Very considerable force.

Means desirably are provided, however, for positivelylocknig the lower bearing 1n running position to avoid any possible dis )lace- 'ment which may beeaused by the vibration of the loom. e

In the pretfelrred construction illustrated herein, the bracket 12 has a laterally, preterably rectangular, exteiision 19 which engages the rear-edge of the loom side. This extensioii is "bored'cen trally to receive a elm-uphi bolt 20 and is recessed to receive the head 21 of the bolt. A ltceper which is mounted upon the bolt 20 and is provided with a curved eiid portion 23 engaging the rear face of the boa-ring l serves to clamp the bearing firmly against't he shoulder \vh'enlihe mit 24 upon the boltEZO issetup.

Thelreeper desi ably is provided with a longi-tiidinally e; tend ng slot E25 through i which the bo'ltEZO extend-s to permit the end'23 of the keeper'tod-rop Maw the shoulder on the 100111 side wheh it is des i-red to swing the bearing 3 i i-om rimming positionfinto loading position. p

The bearihg itor the beam shaft is made in V pivotally co iihected separable Sections. As

' illustrated hereih', the lower bearing e. is a massive bloc leot subs'tah-tia lly rectangular VThe upper bearingmemberfi:

lugs =3?) and 2-51 ivhichare pivot-a l connected to the boss28 by a pin 32. The forward por-,

of the upper b at its lower receive a clamp end an eye which is pivoty mo 7 pin 2-36 in the lower beaiih-g iember. The bo'lt35 has a hut 37%13Cif5t washer fi-S adapted, wae set u' to clamp e' ripperend lower oeariiig members firmly ogether; l heavarp "beam is illustrated position iii full lines in Fig. -1. 1 desired to remove and replacethe v v the hut is backed oil, thus per-n11 ti keeper to drop below the plane of the shoulder 3, thus re a ing; the bearing l. 'l l-ie' oQperw tor may then grasp-the 'h-ahdle lever 18 and by pressing dowii upon it, easily swing the bearing we ate sup ortiagann about thej pivot 11 ehe lo'ad ih'g 'josijtion il-li rated iiiailettec' mes iii l. The DU" f i bolt my then be released d the b swung aoout its pivot 3S, t'hereby fire-oi upper bearing which may then swirl the depending po i'o'i-i illustrated iii d li es in 1. The warp beam may then "be easily removed. A loaded warp beam '1 ht by a truck into such posi oh at he shaft of "the va rp beah'i is in proxi-ia Y lc cl:

.t to the 'beari o f the 1 mu ean be rcmlily his y therel ell"edthercupoii be eW-mig' iiito peei won and in by swingiii the boltilfi into the War-cared end thereof a screwing down t me not 3! V The operator GER-111161111 iidilyew in '1 ing with the beam more 'ed therein ate running position by lifting thelei'er 18 which affords hi2 sullioient leverage to enable him to move the beam to running position with comparatiye*ease. "-helteeper 22 will then be raised until the end 23 engages the rear face of the beari i'ig 1-, as illustrated in 1, and the bea clamped in position by setting up the nu't2 1- upon the bolt Q0. I r Similar movable right and left-hand bearmgs are, of course, provided for "the reep'ective ends of the warp beam shatEt;

7 "By reasoned? this constraction 8,.Q'13G5tlYSEDV- ing is accomplished in theqtime "required "tor removal and replacement of warp beams, as Well as a great reductii oh of :the strength rile;

llii

quired to remove and replace the warp beams.

It is obvious that the invention herein may be employed on other types of loo-ms to which it is applicable and that the bearings and arms and the brackets thereof may be constructed in any such manner as may be necessary to enable the invention to be applied to a particular type of loom.

It will be understood that the embodiment of the invention particularly disclosed herein is of an illustrative character and that various modifications in form, construction and arrangement of the parts may be made within the spirit and scope of the claims.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is:

LA beam hoist and'lockfor looms comprising an arm pivotally mounted upon and within each loom side having a bearing member for the beam shaft normally resting upon and supported by the shoulder of the loom side and movable about said pivot to a posi tion rearwardly of the loom side to receive the beam shaft and releasable locking means mounted on said loom side engaging said bearing member above said shoulder and acting to clamp said bearing member upon said shoulder.

2. A beam hoist and lock for looms comprising an arm pivotally mounted upon and within each loom side having a bearing member for the beam shaft normally resting upon and supported by the shoulder of the loom side and movable to a position rearwardly of the loom side to receive the beam shaft, and a lever extending upwardly and outwardly from the upper portion of said arm and detachably secured thereto, operable to swing said bearing member from and to operating position.

3. A beam hoistand lock for looms comprising an arm pivotally mounted upon and within each loom side having an outwardly ofii-aet bearing member for the beam shaft normally resting upon and supported by the shoulder of the loom side and movable to a position rearwardly of the loom side to receive the beam shaft, and locking means mounted on the loom side movable into and out of engagement with the rea'r'face of said bearin member for clam aim the bearin member upon the shoulder of the loom side.

at. A beam hoist and lock for looms having" loom sides and a rear cross'girder connecting the same comprising an arm pivotally mount ed upon each loom side having an outwardly offset bearing member for the beam shaft normally resting upon and supported by the shoulder of the loom side and movable to a position rearwardly of the loom side to receive the beam shaft, and a shoulder on said arm adapted to engage said rear cross girder to limit the rearward movement of said. arm.

upon a shoulder of the loom side, a complementary upper bearing member pivotally connected to said lower bearing member,

means for clamping said'bearing members to gcther, a keeper movably mounted upon said bracket extension having means to engage said lower bearing, and a clamping screw en gaging said bracket and said keeper.

6. A beam hoist and lock comprising a bracket securedto the inner face of each loom side and having an extension overlap-- ping the end'of the loom side, an arm pivotally mounted upon the bracket having an outwardly offset lower bearing membernon mally resting upon the shoulder of the loom side, a complementary upper bearing mem-. ber pivotallyconnected to said lower bearing member, means for clamping said bearing members together, a keeper having means to engage said lower bearing member and provided with a slot, a bolt passing through said slot to permit bodily vertical movement of said keeper having a head mounted'in said bracket extension and nut on said bolt operable to clamp said keeper upon said bearname to this specification.

ARRY A. DAVIS.

In testimony whereof, I have signed my 

